baber/WOPTO huggingface dataset:
Patent GB-225566-A (GB)
Title: Improvements in valve mechanism for compressed air brakes
IPC: B60T13/36
Filed: 1924-11-28
Abstract: 225,566. Drolshammer, I. Nov. 28, 1923, [Convention date]. Fluid-pressure.-A supplementary piston valve, combined with the main distributing-valve of a compressedair brake, controls a series of supply ports whereby the brake cylinder pressure first rises rapidly, then increases more slowly to a predetermined intermediate value, and finally rises more rapidly to its full value. As shown in Fig. 1, a valve 8 is controlled by the piston rod 14 of a piston 13, subject on its underside to the pressure of a spring 18, and on its upper side to brake cylinder pressure through passages 33, 32, 12. When the brakes are off, the piston is held in the raised position shown, so that the piston rod 14 holds the valve 8 off its seat, whilst a supplementary exhaust passage from the brake cylinder is opened through a passage 34 in the piston and piston rod, and a port 35 in the valvecasing, this passage being arranged to open when brake cylinder pressure has fallen to a. predetermined low value. When a brake application is initiated the piston 31 of the main valve rises, and air is at first supplied from the auxiliary reservoir, connected at 1, to the brake cylinder, connected at 33, not only through a passage 2, throttled passage 11 and annular chamber 10, but also through pasages 2, 4, an annular chamber 5, passage 6, valve 8 and passage 9. As the brake cylinder pressure, rises, the piston 13 is moved down against the pressure of the spring 18, and the piston rod allows the valve 8 to be closed by its spring 23, so that the brake cylinder is then supplied only through the throttled pasage 11. The continued movement of the piston takes place against the combined pressure of springs 18, 22, and when a passage 15 in the piston rod registers with an annular chamber in the sleeve 20 connected to the passage 9, the brake cylinder supply is completed not only through the passage 11, but also through the passage 6, ports 17 in the cap of the valve 8, and passages 15, 9. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification. shown in Fig. 3 (Cancelled) wherein the valve 8 is dispensed with, and the piston rod 14 is provided with a large port 37 and a small port 40 in addition to the port 15. In this form, the brake cylinder is at first supplied both through the passage 11 and the large port 37, then through the passage 11 and the small port 40, and finally through the passage. 11 and the port 15, but, if desired, the passage 11 may now be dispensed with. The supplementary brake cylinder exhaust passage is now provided by a throttled passage 39 by passing the piston 13. This subject-matter does not appear in the Specification as accepted.
Patent GB-886159-A (GB)
Title: Improvements relating to the construction of floors and roofs
Inventor: WHITBREAD HENRY EDWARD
IPC: E04B5/04
Filed: 1958-09-05
Abstract: 886,159. Floors; roofs. ATLAS STONE CO. Ltd. Dec. 2, 1959 [Sept. 5, 1958], No. 28605/58 Class 20(4) In a floor or roof comprising concrete cast in situ on permanent shuttering, the shuttering consists of inverted channels 2 of asbestoscement supported by spaced concrete beams 1. The channels are of U-section with limbs 3 inclined outwardly from the base of the U, and have a roughened outer surface and a smooth inner surface. The channels are laid end-to-end and a concrete block is fitted inside the junction of each pair of abutting channels so that it extends a short distance into each channel. In a modification the junction blocks are omitted and the channels have end walls or webs. Reinforcement is laid over the shuttering before the concrete is cast.
Patent GB-1154807-A (GB)
Title: Device Comprising a Camera, a Voltage Source and a Holder with Expendable Photographic Flash Bulbs
IPC: H05B46/00
Filed: 1967-06-21
Abstract: 1,154,807. Flash-bulbs. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 21, 1967 [June 24, 1966; Sept.30, 1966], No.28664/67. Headings G2A and G2L. Flash-bulbs 69, Fig.6, are wired in parallel with a high voltage source, e.g. a pulse transformer 64, 68, such that on closure of a switch 66 upon actuation of a camera shutter one of the lamps 69 is fired. Further actuations, cause firing of the lamps in sequence according to the voltage required to do so, the lamp requiring the least voltage being fired first. The high voltage source may be provided by a dynamo or Piezo-electro crystal which may be incorporated in the camera. The lamps are filled with a gas which, after ignition, reacts exothermally with the filling, e.g. zirconium. The gas may be oxygen or a volatile fluoro compound on a small quantity of a hydrocarbon. For example, the gas may be mainly oxygen at least 5À4% by volume of CH 4  or 2À1% of C 3 H 6 . A suitable combustible filling is 34À2% by weight of zirconium powder, 25À4% of potassium perchlorate, 1À9% of red phosphorous, 25À8% of lanthanum cobaltite in which part of the lanthanum is replaced by strontium, and 2À7% by weight of nitrocellulose. Electrodes 23, 24, Fig.2, are connected by a glass bead 25. Flash over between electrodes 23, 24 results in explosive combustion of the hydrocarbon when provided, which in turn gives rise to ignition of the zirconium.
Patent GB-647934-A (GB)
Title: Improvements in power operated shears
IPC: B23D29/00
Filed: 1948-11-04
Abstract: 647,934. Shearing. HOLMAN BROS., Ltd., and COOMBES, F. BROWN-. Nov. 4, 1948, No. 28675. [Class 83 (iv)] [Also in Group XVII] A shearing-device comprises a pair of pivotally-connected blades 5, 6, means for securing one of said blades to the cylinder 2 of a pneumatic hammer with the second blade 6 arranged to receive the impact of the hammerpiston, and spring means 9 for separating the blades after a shearing action has taken place.
Patent GB-1390508-A (GB)
Title: Priming vehicle bodies
IPC: C25D13/04
Filed: 1971-06-18
Abstract: 1390508 Electro-priming PRESSED STEEL FISHER Ltd 19 June 1972 [18 June 1971]  28676/71 Heading C7B A vehicle body is primed by spray priming the body e.g. with epoxy primer, partially curing the sprayed primer e.g. by air drying or stoving, electro-priming the body preferably immersed only up to just above the level of the wings to coat at least those regions of the underpart of the body vulnerable to corrosion but inaccessible to spray priming, preferably rinsing with demineralized water, and then stoving the primed body e.g. at 320‹F. Prior to priming, the body may be alkali cleaned, phosphated and dried. The primed body may be sprayed first with an undercoat prior to stoving, then after, with two coats of alkyd top coat.
Patent GB-728691-A (GB)
Title: Improvements in or relating to devices for securing ropes, cables and the like
IPC: F16G11/04
Filed: 1952-11-14
Abstract: 728,691. Friction grip fastenings ; rope coupling devices. WARBURTON, R. E. L., and SANDFORD, W. H. Oct. 14, 1953 [Nov. 14, I952], No. 28731/52. Classes 44 and 109. [Also in Group XXX] A cable stopper of the wedge-and-socket type has the sliding member (e.g. socket 1) provided with a V-shaped groove 2 for the reception of cable 8, and includes a metal bearing strip 9 positioned between the fixed member (e.g. wedge 4) and the sliding member to prevent friction therebetween. As shown, wedge 4 is secured at 7, and strip 9 is secured to the sliding socket 1 at 11. In alternative forms, the wedge may slide in the socket which is then fixed, and the strip may take a number of shapes. Thus the slip may be bent so as to press the wedge against the cable or it may be a double-limbed spring bent around the wedge.
Patent GB-1119643-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/66
Filed: 1965-07-07
Abstract: 1,119,643. Mowing machines. P. W. ZWEEGERS. 7 July, 1965 [11 July, 1964; 9 Oct., 1964; 19 Feb., 1965], No. 28780/65. Heading A1F. A mowing machine comprises at least one cutting unit arranged to be power rotated about a vertical axis, the unit including a conical flange, a supporting member mounted beneath the flange, and a plurality of cutters mounted at the lower side of the flange to extend through an annular slot provided between the flange and member, with each cutter being inclined downwardly. As illustrated each unit comprises a flange 9, cutters 24 and a supporting member 13. The flanges and their associated drums 14 are rotated so that cut crop is passed rearwardly through slots 26. Each drum may have cutters attached to a flange 15. Each cutter, which is of substantially rectangular shape, has four cutting edges and is connected to the flange such that its operative cutting edge is disposed substantially radially of the flange. The connection may hold the cutter stationary relative to the flange or may be such that the cutter will pivot away from its direction of motion upon encountering an obstacle. A cutter pivotally held against the flange by means of a spring mounted pivot pin (Fig. 10, not shown) is released by a special tool (181).
Patent GB-159286-A (GB)
Title: Improvements in and relating to aeroplanes
IPC: B64C39/00
Filed: 1919-11-20
Abstract: 159,286. Gray, C., and Boyajian, M. Nov. 20, 1919. Propelling; steering, balancing, and regulating altitude.-Paddle-wheels on a transverse axis and with adjustable semicircular hoods are provided with semicylindrical blades, and the wheel is mounted in and above a recess in a plane of the aircraft. Two levers and gears are employed for adjusting the hoods from either of two seats on the machine. The wheels are mounted on a transverse shaft 6, Fig. 3, above recesses in the plane, and are driven by chain gear. Each blade comprises a framework 13, Fig. 4, with semicylindrical metal or fabric blades 20 closed at the ends. The hoods 21 are pivoted on the shaft and adjusted by vertical rods pivotally connected to arms on a transverse rod 26. Operating-levers 31, adjacent to the seats 30, are attached to the rod, and carry pawl detent hand grips 42, which free the pawls on rocking-arms 32 from a rack 34 on the rod 26.
Patent GB-322582-A (GB)
Title: Improvements in and in relating to gears
IPC: F16H1/10
Filed: 1928-10-08
Abstract: 322,582. Royce, F. H., and Elliott, A. G. Oct. 8, 1928. Toothed gearing.-In toothed reducing or multiplying gearing, for use with engines, of the kind in which a pinion c engages an annular wheel d<4>, the pinion is mounted on roller or other bearings c<1> on a cylindrical sleeve a<5> secured to the engine casing wall a<3> and engages by serration c<2> an intermediate shaft b<3> connected by serrations to a plate b<4> externally serrated to engage a drum b<2> on the crank shaft b. The internal wheel d<4> is secured to the flered end of the shaft d and is supported by a roller bearing d<6> on a cylindrical sleeve a<4> integral with the sleeve a<5>. Axial movement of the pinion c is limited by nuts c<3>, c<4> secured in its ends.
Patent GB-1102383-A (GB)
Title: Improvements in containers for granular or pulverulent material
Inventor: TILLS JOHN WILLIAM
IPC: B28C7/00
Filed: 1964-07-14
Abstract: 1,102,383. Pneumatic conveyers; transportable containers; load-handling pallets. TILLS ENGINEERING CO. Ltd. 28 June, 1965 [14 July, 1964; 21 Aug., 1964], Nos. 28981/64 and 34361/64. Headings B8A, B8E, B8H and B8P. A transportable container 64, Fig. 6, for granular &c. material and adapted for feeding to a pneumatic conveyer line 64 has an elongated outlet 62 with a slot or row of holes 62a above a rotary sleeve 63 with a helical slot or row of holes 63a, whereby a traversing outlet is obtained as the sleeve 63 rotates. The arrangement (shown) is adapted to vary -the flow of material according to the pressure in suction line 65 connected to some point in the pneumatic conveyer system. The vacuum pressure actuates a piston 67 in a cylinder 66 to move the sleeve 63 longitudnally through a lever 68 whereby the holes 62a, 63a are moved out of alignment to restrict the flow of material with increased vacuum. The container comprises a rigid base B, Fig. 1, to which an upper flexible envelope E of sheet material with material inlets 31 is attached. The sides are retained by removable posts P inserted in sockets 14 in the base. The container may be transported by a fork-lift truck or an overhead sling 51. In a modification, the upper envelope E may be of sheet metal with tapered side faces so that they may be nested together for transport.
Patent GB-675353-A (GB)
Title: Electrolytic capacitor
IPC: H01G9/00
Filed: 1950-11-28
Abstract: 675,353. Electric condensers. PLESSEY CO., Ltd. (Mallory & Co., Inc., P. R.). Nov. 28, 1950, No. 29060/50. Class 37. An electrolytic condenser has the case acting as cathode, a tantalum anode, and a gasket sealing the case. As shown in Fig. 1, the cathode consists of a silver container 24 threaded to receive a cap 30; the anode consists of a disc 51 of tantalum carrying a pellet 15 of pressed and sintered tantalum powder; an hermetic seal is effected by a gasket of, e.g. polytetra-fluoroethylene polymer, which is pressed between the rim 33 of the cathode container, the bent-over anode disc 51, a steel ring 40 for providing a lead, and the cap 30. The electrolyte is 39 per cent H 2 SO 4 . The anode is electroformed to 120 v., D.C. at 135‹ C. in 60 per cent H 2 SO 4  and then to 120 v., D.C. at 200‹ C. in 40 per cent H 2 SO 4 . In Fig. 3 the cathode case 62 is of steel lined with silver, and is crimped to the anode cap 76 as shown. In Fig. 4 the anode 83 has a cylindrical portion 90 of sintered material, and the cathode 81 is of silver-lined steel and is crimped over the anode and contact ring 89, the gasket 87 extending over the depth of the unit.
Patent GB-735999-A (GB)
Title: Improvements in or relating to the manufacture of electric resistors
IPC: H01B1/24
Filed: 1953-10-21
Abstract: 735,999. Producing carbon-boron resistors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 21, 1953 [Oct. 23, 1952], No. 29061/53. Class 37. Relates to producing resistors by deposition on to ceramic carriers of carbon and boron by heating the carriers in a gaseous atmosphere containing carbon and boron. According to the invention the proportion of boron in the gaseous atmosphere is controlled by controlling a quantity of chlorine or bromine which reacts with a solid boron-containing material to form boron trihalide thereby controlling the amount of boron converted into boron trihalide. For the boron-containing material alkaline-earth metal borides may be used; also and highly suitable are boron carbide and nitride which can be converted into trihalides by the passage of chlorine vapour or bromine vapour. In the described manufacturing example purified nitrogen is passed through a halogen-carbon compound such as perchlorethylene (C2Cl4) cooled down to 0‹ C. and then through pulverulent boron carbide heated to 1000‹ C. so as to produce the required boron trichloride (BCl3). This gas comprising BCl3 is mixed with the carboncontaining gas and deposition carried out in known manner. The halogen-carbon compound may be caused to act directly on the boroncontaining material so that pyrolysis of the hydrogen-carbon compound and reaction of the halogen with the boron material take place at the same time. Specification 680,977 is referred to.
Patent GB-991589-A (GB)
Title: Novel [1,2-ª‡]imidazopyridines and a process for the manufacture thereof
IPC: C07D471/04
Filed: 1963-07-23
Abstract: The invention comprises imidazo-[1,2-a -]-pyridines of the formula <FORM:0991589/C2/1> wherein R1 is a hydrogen atom or a C1-4 alkyl or C1-4 alkoxy radical, R2 is a hydrogen atom or a dialkylaminomethyl group of the formula <FORM:0991589/C2/2> wherein R4 and R5 individually represent alkyl groups or, together with the nitrogen atom to which they are attached, form a five or six-membered heterocyclic ring such as pyrrolidino, piperidino, morpholino, piperazino, methyl-piperazino or (b -hydroxyethyl) piperazino and R3 is a C1-4 alkylmercapto alkylsulphoxy or alkylsulphonyl group; and acid-addition salts thereof.  The compounds are prepared by reacting a 2-aminopyridine of the formula <FORM:0991589/C2/3> with an o -halogeno-acetophenone of the formula <FORM:0991589/C2/4> following the conditions of the Tschitschibabin reaction and, if desired, condensing the resulting product with formaldehyde and an amine of the formula <FORM:0991589/C2/5> following the conditions of the Marnich reaction.  Pharmaceutical compositions for oral or parenteral administration having antipyretic, analgesic and anti-inflammatory activity comprise a compound of the invention together with a compatible pharmaceutical carrier or excipient.
Patent GB-1272017-A (GB)
Title: Valve for a container containing a liquid or pasty product under gas pressure; valve permitting distribution at a controllable rate of this product
IPC: B65D83/14
Filed: 1969-06-09
Abstract: 1,272,017. Valves. ETABS. VALOIS. 9 June, 1969 [10 June, 1968], No. 29139/69. Heading F2V. [Also in Division F1] A pressurized dispensing container for liquids or party products is provided with a valve 2 which comprises a valve member 6 having a rounded cap 6a biased against a seat member 71 located in a discharge tube 8 and the valve is opened by leverage of the discharge tube 8 against a gasket 13. The discharge tube is provided with an extension 15 and a dip tube may be fitted to the valve body 3 when the container is used in the upright position.
Patent GB-785545-A (GB)
Title: Improvements in or relating to knitting machines
Inventor: START ERNEST
IPC: D04B11/00
Filed: 1954-10-09
Abstract: 785,545. Knitting. COTTON, Ltd., W. Nov. 23, 1955 [Oct. 9, 1954], No. 29142/54. Class 74 (2). Widening by extending the carrier traverse is achieved on a straight-bar machine by, after feeding the yarn to the normal complement of needles for a course and during the knitting cycle when the needles have been lowered and the sinkers withdrawn, moving the yarn carrier outwardly so that the yarn extends from the carrier to the selvedge across one additional needle Nb, Fig. 13. The sinkers are then advanced to their normal fabric holding down position in which the two sinkers Sa, Sb on either side of the additional needle Nb engage beneath the extended yarn and hold it so that it is positioned on the non-beard side of the additional needle when the needles are raised preparatory to the next draw, Fig. 14. On the next draw the yarn is drawn round the additional needle and fed to it and the other needles for the course, Fig. 15. A loop L is thereby formed round this additional needle through which a further loop 3c is drawn on knitting of the subsequent course, Fig. 16. To enable single wale widening to be effected, the machine is provided with sinkers, the tops of which are all at the same height. In moving the carrier for widening it is moved from a position in which it is aligned with the needle outwardly adjacent the complement of needles for the course to a position in alignment with the next needle. The carrier is outwardly moved at the end of its traverse for a course by racking out the end stop and anti-rebound stop which are mounted on the nut of a lead screw, the anti-rebound stop engaging the lug of the carrier bar and thereby drawing the carrier bar and carrier outwardly as it is so moved. The lead screw is racked in timed relation to the knitting cycle by continuously operating pawl-and-ratchet mechanism which is bluffed into and out of operation as required. The bluffing mechanism is controlled from a half-speed shaft and may include linkage which is manually operable to render the bluffing mechanism itself operative and inoperative. The pawl-and-ratchet mechanism may have further manually-operated mechanism for bluffing it. The mechanism for controlling the pawl-and-ratchet mechanism is duplicated at each end of the machine or at each end of a knitted blank for the purpose of enabling widening to take place at each selvedge. The mechanism at each end may be interconnected with two further mechanisms to enable two knitted blanks to be produced simultaneously from yarn fed from two separate yarn carriers.
Patent GB-917776-A (GB)
Title: Method of measuring the amount of material fissile by thermal neutrons and present in any arbitrary substance, particularly for controlling the state of exhaustion of fuel elements in nuclear reactors
IPC: G21C17/06
Filed: 1961-08-11
Abstract: 917,776. Fuel elements. BROWN BOVERI & CIE. A.G. Aug. 11, 1961 [Sept. 2, 1960], No. 29166/61. Class 39 (4). A method of testing a fuel element or other material to determine the amount of fissile material it contains, comprises exposing the element or material to a thermal neutron flux and counting the fast neutrons produced. In the apparatus shown radioactive antimony 1 is arranged in one side of a beryllium block 3, the beryllium serving to convert gamma rays from the antimony into neutrons and also serving as a moderator. Fuel elements, which may be spherical, are introduced into a guide tube 4 and fast neutrons produced in them are detected by thorium 232 fission chambers 8-11 which have a good discrimination against gamma rays and slow neutrons. A lead shield 5 shields the counters from gamma rays from the antimony 1 and shields the beryllium block 3 from gamma rays from the fuel elements. The apparatus is surrounded by a shield 2 and may be calibrated by testing fuel elements of known fissile content; it may be applied to testing fuel elements which have been removed from a nuclear reactor.
Patent GB-688082-A (GB)
Title: An improved process for the preparation of lubricating oil additives
Filed: 1950-11-29
Abstract: Vinyl aromatic compounds are subjected to simultaneous polymerization and alkylation in the presence of a Friedel-Crafts catalyst, preferably aluminium chloride.  The reaction is preferably carried out by mixing the vinyl aromatic compound with a halo-alkane, preferably a chlorinated paraffin wax containing from 8 to 14.5 per cent chlorine, in an inert polar solvent, preferably carbon disulphide, nitrobenzene, nitromethane or orthodichlorobenzene, adding a complex obtained by mixing a Friedel-Crafts catalyst with nitromethane or nitrobenzene, maintaining the temperature within the range of from -20 DEG  C. to room temperature for a time sufficient to polymerize substantially all the vinyl aromatic compound, and then raising the temperature to 60 DEG  to 100 DEG  C. to complete the reaction.  Olefines may also be used as alkylating agents.  The vinyl aromatic compound may be styrene, alpha-methyl styrene, para-methyl styrene, alpha-methyl para-methyl styrene, vinyl naphthalene, vinyl anthracene or vinyl carbazole.  The product is suitable for use as a lubricating oil additive.ALSO:Lubricating oil comprise a lubricating oil together with from 0.03 per cent to 10 per cent by weight of a pour depressor prepared by the simultaneous polymerization and alkylation of a vinyl aromatic compound, particularly styrene, in the presence of a Friedel-Crafts catalyst (see Group IV(a)).  Other pour depressors, viscosity index improvers, rust inhibitors, oiliness agents and oxidation inhibitors may be incorporated.
Patent GB-1451999-A (GB)
Title: Quinone derivatives
IPC: C07C50/28
Filed: 1974-07-02
Abstract: 1451999 Quinones TAKEDA YAKUHIN KOGYO KK 2 July 1974 [2 July 1973 25 Dec 1973] 29253/74 Heading C2C Novel quinone derivatives having the general formula  or a pharmaceutically acceptable salt thereof, wherein R is (C 1 -C 4 ) alkyl or alkoxy, or two R groups together form a -CH = CH-CH = CH- radical, and Z is hydrogen or (C 1 -C 4 ) alkyl, are prepared by either (i) oxidizing a compound of the formula wherein each of OY and OY<SP>1</SP> is an optionally protected hydroxyl group, (ii) oxidizing a compound of the formula  or (iii) decarboxylating a compound of the formula The novel compounds are pharmaceutically active. Various methods for preparing the starting materials are also described.